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Free tools · no card · nothing uploaded

The numbers a specialist checks first, in two minutes

Paste an ASIN or a few figures. Each tool answers one seller question with the 2026 US fee schedule and Amazon's own thresholds, keeps the result in a link, and can hand it to a specialist.

2026 US fee scheduleAmazon's published thresholdsSigned PDF reportReads your live listing

Which tool do I need?

calculator

Before you order stock

FBA Profit & Fee Estimator

Category, size and weight in; referral, fulfillment and storage fees out. Profit, margin, break-even ACOS, the price for a target margin, a what-if table.

  • Is this product worth launching?
  • What size tier will Amazon put it in?
  • What price hits 25% margin?
Open tool2 min
calculator

Running ads

ACOS, Break-Even & Bid Calculator

ACOS, TACOS, ROAS, break-even and headroom, plus the maximum bid at your target ACOS and the budget a sales goal needs. With a what-to-do-next list.

  • Are my ads actually profitable?
  • What can I pay per click?
  • What budget reaches $X in sales?
Open tool2 min
checker

Before you rewrite

Listing Quality Score

Paste the title, bullets, description and backend terms. A score out of 100 and the fixes in a specialist's order, instantly, nothing uploaded.

  • Why does this listing not convert?
  • Is my title breaking Amazon's rules?
  • What should I fix first?
Open tool3 min
checker

Account health

Account Suspension Risk Check

Your Account Health metrics against Amazon's thresholds: which are past the line, how exposed the account is, and what to fix this week.

  • Am I about to get suspended?
  • Which metric is the problem?
  • What do I do this week?
Open tool2 min
calculator

Money Amazon owes you

FBA Reimbursement Estimator

Lost, damaged and never-returned inventory over the claim window, from a few figures you already have. Where each bucket hides in the reports.

  • How much does Amazon owe me?
  • Is an audit worth the hours?
  • Which reports do I open?
Open tool1 min
Specialist

Human review

Free Listing Audit by a Specialist

Send an ASIN. A real specialist reads the listing and replies with the three changes that would move the needle most. Free, one business day.

  • What would an expert change?
  • Is it the listing or the traffic?
  • What is it worth fixing?
Open tool1 business day

Free checklist

The Amazon launch checklist, 41 checks

Account, product and fees, the listing, the first shipment and the first ninety days. The first phase is open to everyone.

Open the checklist

Why these six

Every seller decision starts with a number

Can the product carry Amazon's fees? Do the ads pay? Does the listing convert? Is the account safe? Does Amazon owe money? These tools give that number in minutes from figures you already have, and each points to the one service that fixes what it measures.

  • 2026 US fee schedule

    Referral, fulfillment and storage tables, checked against Amazon's pages every week.

  • Amazon's own thresholds

    Account Health targets and listing rules, not opinions.

  • Nothing uploaded

    Runs on our servers with what you paste; the result lives in a link you control.

Questions sellers ask

Yes, and no card is ever asked for. The calculators run in your browser and you can use them as much as you like. Reading a live product page is the only thing we count: the first few are free, and after that we ask for an email so your results stay with you. The specialist audit is done by a person and is also free.

They use the published 2026 US fee schedule, checked against Amazon's pages every week and updated automatically when Amazon changes it (referral fees by category, FBA fulfillment fees by size tier, monthly storage by season). Amazon changes fees most Januaries; the tools are updated when it does.

Every result has a link with your numbers in it, a print-ready PDF report with a QR code back to the result, and an option to email it to yourself.

Calculator inputs are numbers only and are kept in aggregate to improve the tools. Pasted listing text is never uploaded. An emailed result creates a contact record so a specialist can follow up if you ask.

Before ordering stock, the FBA fee estimator. Running ads, the ACOS calculator. Traffic but no sales, the listing score. A policy warning, the suspension risk check. Inventory going missing, the reimbursement estimator.

How they work together

Estimate → check → fix

  1. 1

    Estimate the money

    FBA estimator for the unit economics; it hands the cost straight to the ACOS calculator. The reimbursement estimator finds money you already earned.

  2. 2

    Check the account and listing

    Suspension risk check for the account, listing score for the page. Both hand their result to the free specialist audit.

  3. 3

    Fix, or have it fixed

    Every result links to the one service that fixes that problem, with the price. Or send the result to your inbox and fix it yourself.